[elpa] reference refs/remotes/elpa/externals/xr deleted (was 7ba1fc6)

[Mattias Engdeg�rd]

mattiase pushed a change to reference refs/remotes/elpa/externals/xr.

       was  7ba1fc6   * xr.el: Fix compilation and use valid email address

The revisions that were on this reference are still contained in
other references; therefore, this change does not discard any commits
from the repository.